Abstract: This application note discusses the development and deployment of 3G cellular femtocell base STATIONs. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base STATIONs as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
Abstract: High-performance base-STATION (BTS) receivers must meet half-IF spurious requirements, whichcan be achieved by using the proper RF mixer. To help engineers, this application note illustrates the
Abstract: This article describes the Antenna Interface Standards Group (AISG) standard in telecommunications and details itshardware implementation. It explains how a fully integrated transceiver such as the MAX9947 can help reduce space and cost, andsolve bus arbitrations in base-STATION tower equipment.
該系統(tǒng)以計(jì)算機(jī)為依托構(gòu)建中央信息處理系統(tǒng)CIPS（Central Information Processing System），以Pocket PC作為巡檢終端PS（Portable STATION），采用SQL Server 2000關(guān)系型數(shù)據(jù)庫(kù)和SQL Server CE3.0嵌入式數(shù)據(jù)庫(kù)技術(shù)，集RFID技術(shù)、GPS定位技術(shù)、信息管理、信息傳輸?shù)榷囗?xiàng)技術(shù)于一體，完成信息在CIPS和PS之間的交互，實(shí)現(xiàn)巡檢信息的綜合處理。
為了能夠滿(mǎn)足基站易于選址、優(yōu)質(zhì)快速的建站要求和易維護(hù)、低成本、高可靠的運(yùn)行要求，本文對(duì)以方艙來(lái)實(shí)現(xiàn)一體化結(jié)構(gòu)基站做出一番探討。從系統(tǒng)設(shè)計(jì)的觀點(diǎn)闡述了移動(dòng)通信高性能基站天線(xiàn)設(shè)計(jì)的幾個(gè)關(guān)鍵問(wèn)題，介紹了智能天線(xiàn)技術(shù)在基站中的應(yīng)用，并且用HFSS軟件仿真了一種新型的對(duì)稱(chēng)陣子天線(xiàn)，該天線(xiàn)駐波比小于2的帶寬可以達(dá)到60%，具有良好的寬頻帶特性。
Abstract:
In order to meet the STATION construction requirement of easy site selection and fast base STATION， and meet the operational requirement of easy maintenance， low cost and high reliability， this paper discussed the unified architecture base STATION using shelter. Several key problems of high performance mobile communication base STATION antenna were illustrated from the view of system design， the application of smart antenna in base STATION was also introduced. And a novel dipole antenna was simulated by using HFSS， the VSWR of the antenna is less than 2， and the bandwidth was reach to 60%. So it has good broadband properties.
Abstract: This application note discusses the development and deployment of 3G cellular femtocell base STATIONs. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base STATIONs as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
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Please read them carefully before you write the package to their specific functions (at least 20 characters). As far as possible not to let the STATION for the time you have spent on that amendment. Have to extract the password to the password
Please carefully read the many features of your package and then write the specific function (at least 20 words). As far as possible not to let the STATION master of the time spent in the
"Hard to find" full description of ContactID protocol from Ademco used by many home security devices to send messages to CMS (Central Monitoring STATION) about security events.
Has full technical description and can be used to easy make CMS communication module that sends info from your alarm system to CMS STATION.
